Motor



Sept. 8, 1925.

1,552,765 R. J. SEATOR moron 7 Filed June 15,1922 2 Shuts-Shut 1 INVENTOR.

fiabe/vj Jea for.

ATTORNEYS y To all whom it may concern:

Patented Sept. 8, 1925.

UNITED STATES ROBERT J. SEATOR, OF BATTLE CREEK, MICHIGAN.

MOTOR.

Application filed June 15, 1.922. Serial No. 568,484.

Be it known that I, Rosnar J. SEATOR, a citizen of the United States, residing at Battle Creek, county of Calhoun, State of Michigan, have invented certain new and useful Improvements in Motors, of which the following is a specification.

This invention relates to improvements in motors.

My improved motor is especially designed by me for use in connection with thermostats, or as a thermostat motor, and I have illustrated my improvements in the accompanying drawing as I have embodied them for such use.

The main objects of the invention are:

First, to provide an improved motor of the class described which is practically noiseless in its operation.

Second, to provide an improved motor of the class described which is very simple and compact in structure.

Third, to provide an improved motor of the class described which is simple and economical to produce and at the same time very durable and convenient to operate.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A structure which is .a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this application, in which:

Fig. I is a diagrammatic view showing my improved motor in operative relation tothe draft members or dampers of a furnace.

Fig. IIis plan view of my improved motor with the housing removed.

Fig. III is a vertical section on a line corresponding to line 3-3 of Figs. I, II and IV. i

Fig. IV is a vertical transverse section on a line corresponding to line H of Figs. II and III.

Fig. V is a detail vertical section on a line corresponding to line 55 of Figs. II and IV.

Fig. VI is a detail view partially in section on a line corresponding to line 6 6 of. Fig. II, showing details of the ratchet clutch connection for the driving sprocket to the driving shaft.

Fig. VII is a diagrammatic view illustrating the electrical connections of the apparatus.

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines. I

Referring to the drawing, the furnace, shown conventionally at 1, is provided with a draft damper 2 and a check damper 3. These dampers are connected by the cables 4 and 5 to the arms 6 on the driving shaft 7 of my. improved motor, suitable guide pulleys being provided for the cables.

My improved motor comprises a base 8 adapted to be mounted on a bracket 9 or otherwise suitably supported. This base is provided with pedestals or uprights 10 havingbearings' for the shaft 7, the arms 6 being arranged on the outside of these uprights. The driving sprocket 11 has a ratchet connection to the driving shaft, this connection being preferably a ball clutch in order to avoid the noise which is incident to a pawl and ratchet. The sprocket wheel is provided with a drum 12 embracing the cam member 13 on the shaft, the clutch rollers 14: being arranged between the cammed member and the drum, as shown in Fig. VI, the springs 15 beingprovided to urge the rollers towards engaging position. A driving chain 16 is arranged over the sprocket and provided with a power weight 17, the weight being secured to one end of the chain, the other end being provided with a ring 18 for-convenience in grasping. The

operator grasping the ring and pulling on the chain raises the weight. Arranged transversely below the driving shaft is a governor spindle 19 having governor weights 20 mounted thereon by means of the springs 21, one end of the springs being secured to the collar 22 fixed to the shaft. The other end of the springs is secured to the hub 28 of the brake disk 24 so that the brake disk is moved onthe shaft by means of the governor weights. The adjustable member '25 ,is provided to coact with the brake-disk 24. The governor spindle 19 is connected to the driving shaft by means of the transmission worm 26 which is disposed vertically at the side of the driving shaft and connected thereto by means of the worm gear 27 on the drivin shaft.

The worm 26 has a worm gear 28 connected thereto and meshing with the worm 29 on the governor spindle. Thisprovides 'a substantially noiseless driving connection from the driving shaft to the spindle. The driving shaft is controlled by the stop lever 30 pivoted at 31 and coacting with the stop disk 32 on the driving shaft. v

A pair of electromagnets '33'ar'e provided and -operatively connected to a thermostat, the thermostat and'the connections not being shown as they form no part of this invention. The lever 30 is provided with an armature 34 coactin'g with these electromagnets. The outer end of the lever is extended to coast with a stop 35 carried by the stop ring 36 which frictionally engages the periphery of'the brake disk 24. This relieves the "governor mechanism of shock when the stopenga-ges the driving shalt.

A pair of contacts 37 is p'rovid'ed'to coact with the 'contactlpin 38 on the driving shaft, the pin engaging first one andthenthe other of these con'tactsand completing the circuit connection through the thermostat when the motor is atrest, The contacts '37 are mounted on an insulating block 39 and connected to the binding'posts 40. Thecoin tact pin "38 'is'grounded through the frame. A release rod 451 is provided for releasing the locking leverSO when it is desired to operate the motor manu-ally as may be 'desired in starting 'a' fire "or addingi'uel to the furnace or the like. 7

a The connections for the apparatus to the damper 2 and the check 3 'of'a furnaceare shown in Fig. I. The thermostat-by which the device is controlledis not illustrated as such devices'are wellknown on the market and their usewell understood.

Assuming a variation in temperature such as willactu'ate "the thermostat to close a (311'- euit, theelectromagnetis actuated, thereby lifting the controllever or latch 3.0 from the disk 32. Thelever riding on the periphery oi": the disk drops into thesecond'or opposed notch. The'driving'means for the shaft 7 including the"weight,"the sprocket and the worm connections, is controlled by the governormeans consisting of a spindle 19, a governor, weights and a friction or brake disk, the spindle 19 being'connected-to the shaft 7 through the worm gears '26, 27, 28 "29'.

This results in a substantially noiseless drive and one Which is easily controlled. The excess speed will shift the brake disk against the fixed brake membery25' which mayfbe: adjusted as desired 'to check the spindle '19 andthe parts attached thereto. Astop 35 having frictioned engagement with the disk is 'provided.

I haveillustrated my improvements in a very practical embodiment or adaptation thereof. 1 havenot attempted'to illustrate or describe certain modifications-or adaptations which I contemplate, as believe the disclosure made will enable those skilled in "the artto which my invention relates to embody or adapt the'sameas may be desired.

7 Having thus described my invention, what "l-"claim as new and des1re to secure by Letters Patent, is:

1. The combination of a. driving shaft provlded with arms adapted for connection to the member to be operated, a governor brake disk, a'tran'smission worm having a transmission gear connected thereto, said driving shaft being provided with a worm gear 'coacting with said transmission worm and'sa'id spindle with a worm ooacting with said transmission gear, astop' disk 'on'said driving shaft, apivotedstop lever coacting with said stop disk, an electromagnet,said stoplever being provided with'a'n armature ooacting with said electroinagnet, a stop ring coactingwith said stop lever and frictionally engaging the periphery of said brake disk, a pair-ofcontacts, and a contact pin on said" driving shaft adapted m"- engage with one of said contacts when said stop l'ever is in engagement with saidstop disk.

2. The combination of a driving shaft provided with arms adapted for connection to the member-t0 be operated,"agovernor spindle disposed transversely below said driving shaft, governor weights mountedon said spindle, a brake disk mounted for axial movement on said spindle and'operatively associated withsaid governor weights, an adjustable bra-ke'member coacting with said brake disk, a transmission worm having a transmission gear connected thereto, said driving shaft'being provided with a worm gear coac'ting withsaidtransmission worm and said spindle with a worm coacting with said transmissiongear, a stop disk on said driving'shaft, a pivot-ed stop lever coacting with said stop disk, an electromagnet, said stop lever being provided with an armature coacting with said electromagnet, a-pair of contacts, and a contact pin on said driving shattada-pted'to engage'with one of said contacts when said stop lever is in engagement with said stop disk.

The combination of a driving shaft provided with arms adapted for connection to themem'ber to be operated, a governor spindle disposed transversely "below said driving shaft, governor Weights mounted on said spindle, a brake disk mounted for axial movement on said; spindle and "operatively associated with said governor weights, an adjustable brake member coacting with said brake disk, a transmission worm having a said spindle, a brake disk mounted foraxial movement on said spindle, and operatively associated with said governor weights, an adjustable brake member coacting with said brake disk, a transmission worm having a transmission gear connected thereto, said driving shaft being provided with a worm gear coacting with said transmission worm and said spindle with a worm coacting with said transmission gear, a stop disk on said driving shaft, and a pivoted stop lever coacting with said stop disk.

5. The combination of a driving shaft provided with arms adapted for connection to the member to be operated, a driving sprocket on said shaft provided with a roller clutch connection thereto, a driving chain coacting with said sprocket and provided with a power weight, a governor spindle disposed transversely below said driving shaft, governor weights mounted on said spindle, a brake disk mounted for axial movement on said spindle and operatively associated with said governor weights, an adjustable brake member coacting with said brake disk, a transmission worm having a transmission gear connected thereto, said driving shaft being provided with a worm gear coacting with said transmission worm and said spindle with a worm coacting with said transmission gear, a stop disk on said driving shaft, and a pivoted stop lever coacting with said stop disk.

6. The combination of a driving shaft, a governor including a spindle, a transmission worm having a transmission gear connected thereto, said driving shaft being provided with a worm gear coacting with said transmission worm and said spindle with a worm coacting with said transmission gear, a stop member on said driving shaft, and a pivoted stop lever coacting with said stop member.

7. The combination of a driving shaft, a driving sprocket on said shaft provided with a roller clutch connection thereto, a driving chain coacting with said sprocket and provided with a power weight, a gov ernor including a spindle, a transmission worm having a transmission gear connected thereto, said driving shaft being provided with a worm gear coacting with said transmission worm and said spindle with a worm coacting with said transmission gear, a stop member on said driving shaft, a pivoted stop lever coacting with said stop member, an electromagnet, said stop lever being provided with an armature coacting with said electromagnet, a stop ring coacting with said stop lever and frictionally engaging the periphery ofsaid brake disk, a pair of contacts, and a contact pin on said driving shaft adapted to engage with one of said contacts when said stop-lever is in engagement with said stop disk.

8. In a structureof the class described, the combination of a driving shaft, a governor spindle, governor weights, a brake disk mounted for axial movement on said spindle and operatively associated with said governor weights, a brake member coacting with said brake disk, a driving connection from said driving shaft to said spindle, a stop member on said drivingshaft, a pivoted stop lever coacting with said stop memher, an electromagnetysaid stop lever being provided with an armature coacting with said eleetromagnet, a stop coacting with said stop lever and frictionally engaging said brake disk, a pair of contacts, and a contact pin on said driving shaft adapted to engage with one of said contacts when said stop lever is in engagement with said stop disk.

9. In a structure of the class described, the combination of a driving shaft, a governor spindle, governor weights, a brake disk mounted for axial movement on said spindle and operatively associated with said governor weights, a brake member coacting with said brake disk, a driving connection from said driving shaft to said spindle, a stop member on said driving shaft, a pivoted stop lever coacting with said stop member, an electromagnet, said stop lever being provided with an armature coacting with said electromagnet, a pair. of contacts, and a contact pin on said driving shaft adapted to engage with one of said contacts when said stop lever is in engagement with said stop disk.

10. In a structure of the class described, the combination of a driving shaft, a governor spindle, a brake disk mounted for axial movement on said spindle and operatively associated with said governor weights, a brake member coacting with said brake disk, a driving connection from said driving shaft to said spindle, a stop member on said driving shaft, a pivoted stop lever coacting with said stop member, and a stop coacting with said step lever and frictionally engaging said brake disk.

11. In a structure of the class described, the combination of a driving shaft, a governor spindle, governor weights, a brake disk mounted-for axial movement on said spindle and operatively associated with said governor weights, a brake member'coacting with said brake disk, a driving connection from said driving shaft to saidispindle, va stop member on said -driving\shaft, and a pivoted stop lever coactingwith said .stop member.

.12, Ina structure of the cla-ssdescribed, the combination of a driving; shaft, a driving sprocket providedwith aratchet conmotion to said shaft,-a drivingchain coacting with said sprocketand provided with a power weight, a governor spindle, governor weights, a brake disk mounted for axial movement onsaid spindle and operatively associated with said governor weights, a brake member coacting-with said brake disk, a driving connection fromsaid driving shaft to said spindle, a stop member on said driving shaft,and a pivoted stop lever coacting with said stop member.

18. In a structure of the class'described, the combination of a driving shaft aydriw ing sprocket provided with a ratchet connection to said drivingshaift, a driving chain coacting with said sprocket 1 and providedwith, a power Weight, a governor operativelyassociated with said driving shaft and including a governor spindle ,having, a disk thereon, a stop vring frictionally engaging the periphery oflsaid disk, ,a stop diskwon saiddriving shaft, and a pivoted stop-lever coacting with said stop disk and operatively associated with said stop ring,

.14. In a structure of the class described, the combination of a d iving shaft, a driving sprocket provided with a ratchet connection to said shaft, a driving chain coacting with said sprocket and provided with .a power weight aistop memberlonsaid driving shaft, a pivoted stop lever coactingwith said stop member, and agovernor. mechanism operatively associated I with said ,driving shaft and having-a stop element'with which said stop lever coacts, saidgovernor stop element being independent-of; said :stop member on, said driving shaft.

In witness whereof,. I have: hereunto set my hand and seal.

ROBERT, J. sEAToR. L 8. 

